It is no ones fault I don't drive, I am physically not allowed to. It is not just an easy option for some people to just drive to Rickmansworth. Some people have to rely on public transport and having a bus replacment is annoying. I do appreciate that the work has to be done and I do appreciate that doing it at Easter when the number of people using the service is less than doing the work during a workign week. As for the extra time the bus takes, from previosu experiance, it adds about 40 minutes to the journey!